diff --git a/sig-instrumentation/README.md b/sig-instrumentation/README.md
index ef81e9a70..97192cfe4 100644
--- a/sig-instrumentation/README.md
+++ b/sig-instrumentation/README.md
@@ -46,6 +46,9 @@ The following subprojects are owned by sig-instrumentation:
   - Owners:
     - https://raw.githubusercontent.com/kubernetes/metrics/master/OWNERS
     - https://raw.githubusercontent.com/kubernetes/kubernetes/master/staging/src/k8s.io/metrics/OWNERS
+- **mutating-trace-admission-controller**
+  - Owners:
+    - https://raw.githubusercontent.com/kubernetes-sigs/mutating-trace-admission-controller/master/OWNERS
 
 ## GitHub Teams
 
diff --git a/sigs.yaml b/sigs.yaml
index 1f39aec0e..3e4c61d50 100644
--- a/sigs.yaml
+++ b/sigs.yaml
@@ -1215,6 +1215,9 @@ sigs:
       owners:
       - https://raw.githubusercontent.com/kubernetes/metrics/master/OWNERS
       - https://raw.githubusercontent.com/kubernetes/kubernetes/master/staging/src/k8s.io/metrics/OWNERS
+    - name: mutating-trace-admission-controller
+      owners:
+      - https://raw.githubusercontent.com/kubernetes-sigs/mutating-trace-admission-controller/master/OWNERS
   - name: Multicluster
     dir: sig-multicluster
     mission_statement: >